After the 1000, Panasonic developed a more sophisticated 2 IC chip set, one of which did digital TBC, the and the other did digital field noise reduction, CLV memory, 3-line logical Y/C sep, etc. the 900, 600 and later models were all based on this or variations of this chip set, but the 900 was the only model that used all features of both and employed not only the basic video NR but allowed additional video NR to be applied - and offered digital FX.

I doubt that MSB did anything to the picture quality of the 670, considering they didn't do anything to the 900/Runco (other than the AGC defeat). The 670 isn't a digital fx player and probably had a lot of room to add the demodulator, although they offered to add it internally to any LaserDisc player - it was just a single IC and smattering of circuitry. Except for custom, one-off jobs, their usual LD player work was to make/sell "transports" for supposedly improved digital sound playback.

MSB probably used the 670 because it was low cost and allowed them to sell it at a huge mark up.

Hey disclord

I have an LX-1000 and I've noticed picture noise on CLV what pots did you adjust to change it? I've tried looking for a service manual and haven't been able to find one yet, or a regular manual for that matter.

I had an lx-1000u service manual. I sent it to Kurtis (krbahr) to work on an lx-1000u. You could try contacting him. As of only a few months ago Panasonic no longer provides service manuals BTW.

The LX-900 beats the LX-H670 by a bit in my opinion. I can notice the improvement in video quality. For video quality i'd rate LX-900 a 9/10 and the LX-H670 a 7/10. I have never owned a Pioneer Elite player to compare my LX-900 so I can't say if there's much of a difference between the two. My LX-900 is also revision 1995 which doesn't suffer from agl black and white issues or brightness issues in dark scenes in movies. The biggest problem with the LX-900 which prevents it from being a 10/10 is that it cuts off a little of the right side. I can notice it when I watch on our 65 inch tcl 4k tv. The right side black bar is slightly bigger. That's my biggest complaint about Panasonic LX-900. Other than that I would agree with what I've read on the forum and consider this the best Panasonic Player out of the Panasonic Players I've tested. I also give the LX-H670 a 7/10 overall because my particular LX-H670 has issues reading discs that are either too scratched up on parts of the laserdisc or has a slight warp to it. My collection continues to grow and I probably have 100 laserdiscs or more and out of that 100 laserdisc collection probably about 85 or 80 of the laserdiscs will play fine. So 15 or even possibly 20 of the laserdiscs I own will have issues with the video and audio on my LX-H670. I can't full recommend the LX-H670 unless it just happens to be my LX-H670 that may need laser calibration or maybe laser might be slowly dying. I think it's more to do with it being a middle of the road player and not a higher end player. Back in the day the LX-H670 would sell for around $399 and the LX-900 would ell for about $699. There's a reason why the LX-900 reads the discs better and i think it's because it has a better chip in it that allows for it to give better picture quality as well as reading discs so none of that video or audio issue on warped or discs that have some scratches on it.